Operating System (OS)
File record length

None of these
should always be fixed
depends upon the size of the file
should be chosen to match the data characteristics
Should always be variable

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Operating System (OS)
Memory management is :

critical for even the simplest operating systems
not used in modern operating system
replaced with virtual memory on current systems
not used on multiprogramming systems
None of these

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Operating System (OS)
Page stealing

Should be the turning goal
Is a sign of an efficient system
Is taking page frame from other working sets
Is taking layer disk space for page in page out

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